Thank you but here we go back to 8ohms.
prefere to stay with 4ohms
I was not using ISDalpha (pro) is this design acceptable for my use?
I got mine 13W3V3 like this:
Airspeed 11 m/s at 20 hz.
An externally hosted image should be here but it was not working when we last tested it.
Airspeed 11 m/s at 20 hz.
Looks like a design used for an automobile. I wouldn't use that design for your project. I haven't used WinISD, but I believe that the transfer function magnitude tool would be used to design enclosures for cars.
Regards,
Matt
Regards,
Matt
What should i use then? do you recommend another software? I have never used a software to build a subwoofer, i used to to build them following the manufacturer instructions. but this a different project, so any help is welcome. I know since this outdoors, there is no cabine gain, but i have no idea how to compensate this, or how to deal with it.
No it is a design for a movie subwoofer,next to my 2 closed JL,s.
It play,s only below 40 hz.
It has o nice flat response to 15 hz inroom.
An i dont see why this should be for car audio?
Sorry, morca I was responding to Jpcolins post #21. Your graph on post #22 looks great, and so does your build, nice job.
Jpcolin, WinISD should work great to design a Bandpass. The graphs that you posted of the Dayton and the JL 12 look good for your application. The JL 13 response should look as good as those or morcas. You need to know what design goals you have for this project, like how high and how low you want the frequency response, ripple and output. As soon as I get back from vacation I will down load WinISD. Looks like a sweet program.
Regards,
Matt
Jpcolin, WinISD should work great to design a Bandpass. The graphs that you posted of the Dayton and the JL 12 look good for your application. The JL 13 response should look as good as those or morcas. You need to know what design goals you have for this project, like how high and how low you want the frequency response, ripple and output. As soon as I get back from vacation I will down load WinISD. Looks like a sweet program.
Regards,
Matt
Reloader,
First of all thanks for your help.
The goals are to give the backyard some low frequencies, the satellites are small so i would take 90hz as the limit. The application is music, mostly R&B, pop, lounge, so deep (a little fat)bass is must, but still controled.
I have no idea how low this kind om music goes?
No idea what ripple is.
Thanks
Okay, so I had a chance to download WinISDbeta. I couldn't find how to change the alignment for a fourth order bandpass. So I downloaded WinISDalpha, and in alpha you can adjust the alignment, ripple = S and gain = Qbp. In alpha you can play around with the alignment to get the response you want. You can move the passband up or down in frequency or make the passband wider, but changing the alignment will effect transient performance and output. Hope this was helpful.
Regards,
Matt
Regards,
Matt
Sorry i read it wrong
No i see you mean the other diagram.
Thanks for the compliment,it is a great movie sub.
A explosion feels amazing.
I'm on Alpha too, but i no idea what you are talking about (almost chinese ;-) ), don't see any S nor Qbp. would you mind posting a design you think would fit my use with the 13w3v3?
Hi JPcolin,
Here are some examples that could work for your project. The two examples with the higher Fh or F3 would work better with the satellite speakers your planning on using. In Winisd, once you have created a new project you can play around with the front and rear box volume, and the front tuning frequency to get the response you want.
Regards,
Matt
Here are some examples that could work for your project. The two examples with the higher Fh or F3 would work better with the satellite speakers your planning on using. In Winisd, once you have created a new project you can play around with the front and rear box volume, and the front tuning frequency to get the response you want.
Regards,
Matt
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Hi Matt,
Thanks, i haveno idea if this is good or not for my particular aplication, frequencies look good tough. I had a look at the air velocity in the port and ik is really low, (pompared to the 11m/s of Morca..) is this good or bad?
Hi Matt,
It's been a while, buti have some update, i was able to find a 12w3v3-4 for 40€ (new), so i bought it. Could you share some designs with the 12"? Your designs for the 13" looked good!
Hi Jpcolin,
Sorry for the delayed response, I didn't have access to the laptop until now. This design should work well with the 12W3v3-4. Notice that I used two 4 inch ports, 4 inch pvc is probably easier to find than 6 inch. If you have any questions please let me know.
Regard,
Matt
Sorry for the delayed response, I didn't have access to the laptop until now. This design should work well with the 12W3v3-4. Notice that I used two 4 inch ports, 4 inch pvc is probably easier to find than 6 inch. If you have any questions please let me know.
Regard,
Matt
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